JPS6040378Y2 - Conveyance device using trolley - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a conveyance device using a trolley.

Conventionally, in a system in which a cart is run along a fixed route, a passive protrusion on the cart side is engaged with a driving protrusion of a cart driving device disposed under the floor.

According to this type, since the cart driving device is buried in the floor, installation requires extensive construction work and maintenance cannot be easily performed.

Therefore, recently, a format has been proposed in which the truck drive device is disposed on the floor.

That is, in Japanese Patent Application Laid-Open No. 49-8968, a bogie drive device having driving protrusions at predetermined intervals is located above the machine frame of the bogie, and a passive pin is provided on the machine frame of the bogie at the center of the front part. There is provided a structure in which the carriage can be engaged with and disengaged from the drive protrusion, and the carriage can travel on a fixed route by the engagement.

However, according to this conventional type, since the cart driving device is disposed directly above the cart, the height of the object to be transported by this cart is limited by the cart driving device, and various It is not possible to arbitrarily transport objects of large size and shape.

Furthermore, since the passive part is the front upper end of the trolley, for example, when the wheels come into contact with another object on the floor while the empty trolley is running,
A rotational moment in the forward tilting direction acts on the cart, making it impossible to run it smoothly as expected.

As a solution to such problems,
No. 4724 is provided, and in this conventional example, a roller is attached to the outside and lower part of one side of the cart, and a rail for guiding this roller is arranged on the floor, and the roller shaft is suspended to perform passive operation. A truck driving device is formed on the floor and has a hook that can be freely engaged and detached from the driven pin.

According to this, it is possible to solve the problem of the shape restriction of the transported object and the rotational moment in the forward falling direction.

However, since the passive part is on one side and on the outside of each wheel, which is the part that receives the most uneven load, the carriage cannot run smoothly, and especially when the object to be transported is heavy, the passive part becomes strained.

Furthermore, since the cart drive device is located below the main body of the cart and close to the floor, maintenance cannot be easily performed by an operator, such as by bending down.

In order to solve the various problems mentioned above, the conveyance device using a trolley according to the present invention has a guide rail arranged on the floor side, and a roller guided by the guide rail on the lower surface of the center of the trolley. The truck is mounted so that it can run on a fixed path, and a load support part that is rotatable around the vertical axis via a rotation device is provided on the top surface of the truck, and the load support section is installed above the floor and in conjunction with the rotation device. A bogie drive device having downward drive protrusions at predetermined intervals is disposed along the fixed path at the same level, and the drive protrusions are located at the front end of the upper surface of the machine frame of the bogie and at a position inside the rear wheels. A passive protrusion that can be engaged with is provided, and a release device is provided at the rear end to release the passive state of the following bogie by the passive protrusion.

According to this configuration, since the trolley drive device is provided above the floor and above the trolley body, installation work can be easily performed, and maintenance can be easily performed at a position well above the floor surface. Since the driving device is installed at the same level as the rotating device, the load support section located above it can support various types of objects without being limited in shape, and can also change direction for various tasks. In addition, the passive part can be located inside the rear wheels and as close as possible to the center of the bogie.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 denotes a bogie that can run on a floor 2, and its frame 3 consists of a front frame 4, a middle frame 5, and a rear frame 6. A pair of left and right front wheels 7 are attached to the front frame 4, and a pair of left and right front wheels 7 are attached to the rear frame 6. A pair of left and right rear wheels 8 are attached.

A load support section 10 is placed on the middle frame 5 via a rotating device 9.
is rotatably provided around the vertical axis.

11 indicates an object to be transported.

A pair of left and right rollers 12 are attached to the lower surface of the central portion at the front and rear of the middle frame 5, respectively, and a guide rail 13 for guiding these rollers 12 is disposed on the floor 2 via a stay 14.

Therefore, the truck 1 can travel on a constant path.

15 is a trolley drive device arranged along the fixed route,
A fixed rail 16 installed above the floor 2 and at the same level as the rotating device 9, a roller chain 17 guided by the fixed rail 16, and downward drive protrusions provided on the roller chain 17 at predetermined intervals. It consists of 18.

At the front end of the upper surface of the machine frame 3 of the bogie 1, that is, on the left side of the front frame 4 and at a position inside the rear wheel 8, there is the drive protrusion 18.
A passive protrusion 19 that can be engaged with is provided, and a release device 20 is provided at the rear end, that is, on the left side of the rear frame 6, for releasing the passive state of the following bogie 1 by the passive protrusion 19.

In the state where the driving protrusion 18 engages with the passive protrusion 19,
The truck 1 receives power from a truck drive device 15 and is guided by a guide rail 13 to travel along a fixed route.

When the trailing truck 1 approaches while the leading truck 1 is stopped, the operating section integrated with the drive protrusion 18 engaged with the passive projection 19 of the trailing truck 1 is activated by the release device 20 of the leading truck 1. As a result, the drive protrusion 20 moves upward and is disengaged from the passive protrusion 19, thereby cutting off the drive to the following truck 1.

According to the conveyance device using a trolley according to the present invention, since the trolley drive device is installed above the floor and above the trolley body, installation work can be easily and inexpensively carried out, and maintenance can be performed from the floor surface. can also be easily performed in a fairly upward position.

In addition, since the cart driving device is installed at the same level as the rotating device, the load support section located above can support various objects without being limited in shape, and can also be used as a load supporter for various operations. The direction of the conveyed object can be changed arbitrarily, and since the passive part can be placed inside the rear wheels and as close as possible to the center of the trolley, smooth running without twisting can be achieved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with Figure 1 being a front view and Figure 2 being a front view.
The figure is a side view, and FIG. 3 is a plan view. 1... Trolley, 2... Floor, 3...
・Machine frame, rear wheel, 9...rotating device,
10... Load support part, 11... Transported object, 12... Roller, 13... Guide rail, 15... Cart drive Device, 16...
・Fixed rail, 17... Roller chain, 18.
... Drive projection, 19 ... Passive projection, 20 ... Release device.

Claims (1)

[Scope of utility model registration request] A guide rail is provided on the floor side, and a roller guided by the guide rail is attached to the lower surface of the center of the truck, so that the truck can run on a fixed path, and on the upper surface of the truck,
A load support part rotatable around the vertical axis via a rotation device is provided, and a truck drive device having downward drive protrusions at predetermined intervals above the floor and at the same level as the rotation device is installed in the fixed path. A passive protrusion that can be engaged with the drive protrusion is provided at the front end of the upper surface of the machine frame of the bogie and at a position inside the rear wheel, and the rear end is provided with a passive protrusion that can be engaged with the drive protrusion of the following bogie. A conveyance device using a trolley, characterized by being provided with a release device for releasing the state.